H5N1 (Bird Flu)

QUESTION: Why is Bird Flu not as wide spread among people?

HYPOTHESIS: I think the reason Bird Flu is not as wide spread among people is, because it is hard to transmit.



H5N1 cell
H5N1 cell



PEOPLE WHO USUALLY GET H5N1
ARE...

  • People who work with poultry
  • Travelers visiting countries that are infected
  • People who touch infected birds
  • People who consume raw or undercooked poultry,
----- eggs, or blood from birds that are infected


http://virus.emedtv.com/bird-flu/how-does-bird-flu-spread.html



http://s2.e-monsite.com/2010/03/18/01/birdflu_0-image-site.jpg
http://s2.e-monsite.com/2010/03/18/01/birdflu_0-image-site.jpg









SYMPTOMS OF BIRD FLU...


  • Fever (over 100)
  • Cough (dry of productive)
  • Sore throat
  • Muscle Ache
  • Pneumonia
  • Viral Pneumonia*

http://virus.emedtv.com/bird-flu/symptoms-of-bird-flu.html






http://kidshealth.org/misc/movie/parent/avianflu/index.html <----------------------- video on how diseases spread and H5N1



external image images?q=tbn:ANd9GcR8OcbQgq_Obw1DFVP3HaU9D_5tHNYslwAmwzK5os6Nh2nnoJyx


external image images?q=tbn:ANd9GcTwUWPcm7zhjJXzDfQBzUIVPaCHo19pKVeq9ivbhrArImldSnKtCS2c9dc
METHODS

For my project I will mostly be going through data, mostly from the CDC, E med,
WHO, NCBI, and the Flu websites. After I have gathered all of the data I will consider the data,
I will write it up.









2003

2004

2005

2006

2007

2008

2009

Total

Country
Cases
Deaths
Cases
Deaths
Cases
Deaths
Cases
Deaths
Cases
Deaths
Cases
Deaths
Cases
Deaths
Cases
Deaths
Azerbaijan
0
0
0
0
0
0
8
5
0
0
0
0
0
0
8
5
Bangladesh
0
0
0
0
0
0
0
0
0
0
1
0
1
0
2
0
Cambodia
0
0
0
0
4
4
2
2
1
1
1
0
1
0
9
7
China
1
1
0
0
8
5
13
8
5
3
4
4
7
4
38
25
Djibouti
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
Egypt
0
0
0
0
0
0
18
10
25
9
8
4
30
4
81
27
Indonesia
0
0
0
0
20
13
55
45
42
37
24
20
22
18
141
115
Iraq
0
0
0
0
0
0
3
2
0
0
0
0
0
0
3
2
Laos
0
0
0
0
0
0
0
0
2
2
0
0
0
0
2
2
Myanmar
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
0
Nigeria
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
1
Pakistan
0
0
0
0
0
0
0
0
3
1
0
0
0
0
3
1
Thailand
0
0
17
12
5
2
3
3
0
0
0
0
0
0
25
17
Turkey
0
0
0
0
0
0
12
4
0
0
0
0
0
0
12
4
Vietnam
3
3
29
20
61
19
0
0
8
5
6
5
4
5
111
56
Total
4
4
46
32
98
43
115
79
88
59
44
33
41
12
436
262



QUESTION

Why are there so many cases in Indonesia and so few Bangladesh?

there are

172,630,000 <------------------- Bangladesh


1,200,000,000 <---------------- Indonesia


so maybe, more chickens more disease.

also the Avian Influenza mutated making it more contagious.

QUESTION

My last question is: Why did people think this was going to be a pandemic, was it our quick thinking as people that cut it off, or was there never a pandemic.



Answer given by nature.com:

Here is what I understood.


Eventually, everyone in the affected populations would become immune ( immunity would be passed down from parents to children, for example) the strain would with time die down and ultimately end. The most severe pandemic of the past century occurred in 1918, as many as 50,000,000 people died, that was caused by a strain of H1N1 (similar to the one we had recently, with the exception 18,000 people died in that strain. Scientist now believe that strain probably evolved in birds before being capable of infecting people.

Also there have been similar disease such as...

H2N2 - which killed 100,000 people

H3N2 - killed 700,000 people

both of these involved flu viruses that evolved first from another animal most likely pigs, before people were able to contract it.

The only fear that people had about H5N1 is that it would mutate and spread further.


Conclusion

Bird Flu is not as wide spread among people because, it needs to mutate to be transmitted to people, and they have medicine to treat it.




If underlined it is a direct quote

*irritation and swelling of lungs, because of infection.






BIBLIOGRAPHY



www.flu.gov/individualfamily/about/h5n1/index.html- what is bird flu? and how many people have been affected by bird flu?

virus.emedtv.com/bird-flu/how-does-bird-flu-spread.html - how bird flu spreads, and

www.ncbi.nlm.nih.gov - definition of viral pneumonia

virus.emedtv.com/bird-flu/symptoms-of-bird-flu.html - symptoms of bird flu?

en.wikipedia.org/wiki/Poultry_farming- numbers of chickens

s2.e-monsite.com/2010/03/18/01/birdflu_0-image-site.jpg- bird flu explanation picture

www.nature.com/avianflu/faq/full/avianflu.2007-13.html- answer on pandemic